Fix AUCTION_HOUSE_SIZE calculation (metaplex-foundation#843)

* Fix AUCTION_HOUSE_SIZE calculation

* Move 21 freed bytes to padding

Move 21 freed bytes to padding to maintain account size

* remove duplicate code

* update padding to 220

rust/auction-house/src/lib.rs

@@ -431,7 +431,6 @@ pub mod auction_house {
             FEE_PAYER.as_bytes(),
             &[auction_house.fee_payer_bump],
         ];
-        let auction_house_key = auction_house.key();
         let wallet_key = wallet.key();
 
         let escrow_signer_seeds = [
@@ -1345,12 +1344,13 @@ pub const AUCTION_HOUSE_SIZE: usize = 8 + //key
 32 + //treasury mint
 32 + //authority
 32 + // creator
-8 + // bump
-8 + // treasury_bump
-8 + // fee_payer_bump
+1 + // bump
+1 + // treasury_bump
+1 + // fee_payer_bump
 2 + // seller fee basis points
 1 + // requires sign off
-200; //padding
+1 + // can change sale price
+220; //padding
 
 #[account]
 pub struct AuctionHouse {